LLVM Debian/Ubuntu nightly packages
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The goal is to provide Debian and Ubuntu nightly packages ready to be installed with minimal impact on the distribution.
Packages are available for amd64, i386 (except for recent Ubuntu) and S390X. This for both the stable, old-stable and development branches (currently 11, 12 and 13).

Packages are built using stage2 and extremely similar to the one shipping in Debian & Ubuntu.

The packages provide LLVM + Clang + compiler-rt + polly + LLDB + LLD + libFuzzer + libc++ + libc++abi + openmp + libclc

News
May 10th 2021 - Debian strech disabled (quite old). If you are still using, mail me
May 01st 2021 - libclc packages generated from 12. Thanks to Timo Aaltonen
Apr 25th 2021 - S390X support added
Mar 28th 2021 - Ubuntu Xenial (16.04) disabled (EOL)
Feb 01st 2021 - Snapshot becomes 13, branch 12 created
Feb 01st 2021 - Debian Bullseye (11) added
Nov 01st 2020 - Ubuntu Groovy (20.10) & Hirsute (21.04) support
Nov 01st 2020 - Ubuntu Eoan disabled (EOL)
Jul 15th 2020 - Snapshot becomes 12, branch 11 created
Apr 14th 2020 - Ubuntu Disco disabled (EOL)
Apr 06th 2020 - Ubuntu Focal (20.04) support
Jan 23th 2020 - Snapshot becomes 11, branch 10 created
Jan 19th 2020 - Ubuntu Cosmic disabled (EOL)
Oct 30th 2019 - Ubuntu Eoan (19.10) support
Aug 20th 2019 - Ubuntu Trusty disabled (EOL)
Aug 01st 2019 - Snapshot becomes 10, branch 9 created
Apr 07th 2019 - Debian buster (10) added
Apr 06th 2019 - Debian Jessie (oldstable) no longer maintained
Jan 19th 2019 - Branch 8 created
Jan 19th 2019 - Ubuntu Disco (19.04) support
Jan 19th 2019 - Artful jobs disabled (but packages still available)
Automatic installation script
For convenience there is an automatic installation script available that installs LLVM for you.
To install the latest stable version: 
bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)"

To install a specific version of LLVM: 
wget https://apt.llvm.org/llvm.sh
chmod +x llvm.sh
sudo ./llvm.sh <version number>
Debian
Buster (Debian 10 - stable) - Last update : Sun, 25 Jul 2021 15:51:38 UTC / Revision: 20210725115131+acbc0c5f0ebd 
deb http://apt.llvm.org/buster/ llvm-toolchain-buster main
deb-src http://apt.llvm.org/buster/ llvm-toolchain-buster main
# 11 
deb http://apt.llvm.org/buster/ llvm-toolchain-buster-11 main
deb-src http://apt.llvm.org/buster/ llvm-toolchain-buster-11 main
# 12 
deb http://apt.llvm.org/buster/ llvm-toolchain-buster-12 main
deb-src http://apt.llvm.org/buster/ llvm-toolchain-buster-12 main
Bullseye (Debian 11 - next stable) - Last update : Sat, 24 Jul 2021 23:46:35 UTC / Revision: 20210724071746+eda6afdad62c 
deb http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye main
deb-src http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye main
# 11 
deb http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye-11 main
deb-src http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye-11 main
# 12 
deb http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye-12 main
deb-src http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye-12 main
sid (unstable) - Last update : Sat, 24 Jul 2021 20:05:09 UTC / Revision: 20210723100615+04e8d0b62dca 
deb http://apt.llvm.org/unstable/ llvm-toolchain main
deb-src http://apt.llvm.org/unstable/ llvm-toolchain main
# 11 
deb http://apt.llvm.org/unstable/ llvm-toolchain-11 main
deb-src http://apt.llvm.org/unstable/ llvm-toolchain-11 main
# 12 
deb http://apt.llvm.org/unstable/ llvm-toolchain-12 main
deb-src http://apt.llvm.org/unstable/ llvm-toolchain-12 main
Ubuntu
Precise, Quantal, Raring, Saucy, Utopic, Artful, Cosmic, Eoan and Trusty are no longer supported by Ubuntu. Repo remains available

Bionic LTS (18.04) - Last update : Sun, 25 Jul 2021 16:29:44 UTC / Revision: 20210725091410+acbc0c5f0ebd 
# i386 not available
deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic main
deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic main
# 11
deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main
deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main
# 12
deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-12 main
deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic-12 main
Focal (20.04) LTS - Last update : Sat, 24 Jul 2021 21:02:35 UTC / Revision: 20210724052618+0339fcc7284d 
# i386 not available
deb http://apt.llvm.org/focal/ llvm-toolchain-focal main
deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal main
# 11
deb http://apt.llvm.org/focal/ llvm-toolchain-focal-11 main
deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-11 main
# 12
deb http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main
deb-src http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main
Groovy (20.10) - Last update : Sun, 25 Jul 2021 13:35:50 UTC / Revision: 20210725113609+acbc0c5f0ebd 
# i386 not available
deb http://apt.llvm.org/groovy/ llvm-toolchain-groovy main
deb-src http://apt.llvm.org/groovy/ llvm-toolchain-groovy main
# 11
deb http://apt.llvm.org/groovy/ llvm-toolchain-groovy-11 main
deb-src http://apt.llvm.org/groovy/ llvm-toolchain-groovy-11 main
# 12
deb http://apt.llvm.org/groovy/ llvm-toolchain-groovy-12 main
deb-src http://apt.llvm.org/groovy/ llvm-toolchain-groovy-12 main
Hirsute (21.04) - Last update : Sun, 25 Jul 2021 17:05:09 UTC / Revision: 20210725104410+acbc0c5f0ebd 
# i386 not available
deb http://apt.llvm.org/hirsute/ llvm-toolchain-hirsute main
deb-src http://apt.llvm.org/hirsute/ llvm-toolchain-hirsute main
# 11
deb http://apt.llvm.org/hirsute/ llvm-toolchain-hirsute-11 main
deb-src http://apt.llvm.org/hirsute/ llvm-toolchain-hirsute-11 main
# 12
deb http://apt.llvm.org/hirsute/ llvm-toolchain-hirsute-12 main
deb-src http://apt.llvm.org/hirsute/ llvm-toolchain-hirsute-12 main
Default packages
To make sure always the most recent versions of the packages are installed, we are providing some default packages.
To install all of them (currently version 13):

apt-get install clang-format clang-tidy clang-tools clang clangd libc++-dev libc++1 libc++abi-dev libc++abi1 libclang-dev libclang1 liblldb-dev libllvm-ocaml-dev libomp-dev libomp5 lld lldb llvm-dev llvm-runtime llvm python-clang

Install
(old-stable branch)
To retrieve the archive signature:

wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
# Fingerprint: 6084 F3CF 814B 57C1 CF12 EFD5 15CF 4D18 AF4F 7421


To install just clang, lld and lldb (11 release):

apt-get install clang-11 lldb-11 lld-11


To install all key packages:

# LLVM
apt-get install libllvm-11-ocaml-dev libllvm11 llvm-11 llvm-11-dev llvm-11-doc llvm-11-examples llvm-11-runtime
# Clang and co
apt-get install clang-11 clang-tools-11 clang-11-doc libclang-common-11-dev libclang-11-dev libclang1-11 clang-format-11 python-clang-11 clangd-11
# libfuzzer
apt-get install libfuzzer-11-dev
# lldb
apt-get install lldb-11
# lld (linker)
apt-get install lld-11
# libc++
apt-get install libc++-11-dev libc++abi-11-dev
# OpenMP
apt-get install libomp-11-dev

Install
(stable branch)
To retrieve the archive signature:

wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
# Fingerprint: 6084 F3CF 814B 57C1 CF12 EFD5 15CF 4D18 AF4F 7421


To install just clang, lld and lldb (12 release):

apt-get install clang-12 lldb-12 lld-12


To install all key packages:

# LLVM
apt-get install libllvm-12-ocaml-dev libllvm12 llvm-12 llvm-12-dev llvm-12-doc llvm-12-examples llvm-12-runtime
# Clang and co
apt-get install clang-12 clang-tools-12 clang-12-doc libclang-common-12-dev libclang-12-dev libclang1-12 clang-format-12 python-clang-12 clangd-12
# libfuzzer
apt-get install libfuzzer-12-dev
# lldb
apt-get install lldb-12
# lld (linker)
apt-get install lld-12
# libc++
apt-get install libc++-12-dev libc++abi-12-dev
# OpenMP
apt-get install libomp-12-dev
# libclc
apt-get install libclc-12-dev

Install
(development branch)
To retrieve the archive signature:

wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
# Fingerprint: 6084 F3CF 814B 57C1 CF12 EFD5 15CF 4D18 AF4F 7421


We also provide meta packages to move from a major version to the other.
For example, to automatically upgrade to the current major:

apt-get install clang lld # clang-13 lld-13 can be added to automatically install the most recent version of the package.


To install just clang, lld and lldb (13 release):

apt-get install clang-13 lldb-13 lld-13


To install all key packages:

# LLVM
apt-get install libllvm-13-ocaml-dev libllvm13 llvm-13 llvm-13-dev llvm-13-doc llvm-13-examples llvm-13-runtime
# Clang and co
apt-get install clang-13 clang-tools-13 clang-13-doc libclang-common-13-dev libclang-13-dev libclang1-13 clang-format-13 python-clang-13 clangd-13
# libfuzzer
apt-get install libfuzzer-13-dev
# lldb
apt-get install lldb-13
# lld (linker)
apt-get install lld-13
# libc++
apt-get install libc++-13-dev libc++abi-13-dev
# OpenMP
apt-get install libomp-13-dev
# libclc
apt-get install libclc-13-dev

Technical aspects
Packages are rebuilt against the trunk of the various LLVM projects.
They are rebuild through a Jenkins instance:
https://llvm-jenkins.debian.net

Bugs

Bugs should be reported on the LLVM bug tracker (deb packages).

Workflow

Twice a day, each jenkins job will checkout the debian/ directory necessary to build the packages. The repository is available on the Debian hosting infrastructure: https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/. In the llvm-toolchain-*-source, the following tasks will be performed: Then, the job llvm-toolchain-X-binary will: Note that a few patches are applied over the LLVM tarballs (and should be merged upstream at some point).
Extra
With the Jenkins instance, several reports are produced:
Building the latest nightly snapshot
Building LLVM packages from source is documented in a dedicated page.

Contact: Sylvestre Ledru
Build infra by IRILL / Hosting by LLVM Foundation / CDN by Fastly